Kitchener Brands
- M&M Food Market (4)
- Magicuts (3)
- Mandarin (1)
- Mappins Jewellers (1)
- Marbleslab Creamery (1)
- Maritime Travel (1)
- Mark's L'Équipeur (3)
- Marlin Travel (2)
- Marshalls (1)
- Mary Brown's (1)
- McDonald's (11)
- Metro (1)
- MICHAELS (1)
- MICROPLAY (1)
- Miniso (1)
- Minuteman Press International (1)
- Mister Transmission (3)
- MNP LTD (5)
- MONEY MART (4)
- MONTANA'S (1)
- Moores Clothing (2)
- Moxie's Grill & Bar (1)
- Mr. Lube (3)
- MR.SUB (5)
- Mucho Burrito (1)